Download Eltek Valere UNV-F 2.5 User manual

DC/AC INVERTER
UNV-F 2.5/3.3/5.0
USER MANUAL
UM_UNVF_E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 2 (28)
Notes to this manual
ATTENTION! Read this manual very carefully before installing and commissioning the specified module.
This manual is a part of the delivered module. Familiarity with the contents of this manual is required for
installing and operating the specified module.
The rules for prevention of accidents for the specific country and the general safety rules in accordance with
IEC 364 must be observed.
The function description in this manual corresponds to the date of publishing.
Technical changes and changes in form and content can be made at any time by the manufacturer without
notice. There are no obligations to update the manual continually.
The module is manufactured in accordance with applicable DIN and VDE standards such as VDE 0106 (part 100)
and VDE 0100 (part 410). The CE marking on the module confirms compliance with EU standards 2006-95-EG
(low voltage) and 2004-108-EG (electromagnetic compatibility) if the installation and operation instructions are
followed.
Supplier:


FAX
Email
Internet
ELTEK VALERE DEUTSCHLAND GmbH
GB Industrial
Schillerstraße 16
D-32052 Herford
+ 49 (0) 5221 1708-210
+ 49 (0) 5221 1708-222
[email protected]
http://www.eltekvalere.com
2009. ELTEK VALERE DEUTSCHLAND GmbH. All rights reserved.
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 3 (28)
The current revision status of this user manual is the following:
Revision:
2.0
Date:
2009-07-31
Revision
Description of change
Writer
01-03
Minor text modifications
RTH
04
ELTEK VALERE INDUSTRIAL layout inserted
RTH
2008-01-29
1.0
New revision status numbering (X.X) introduced, section “Error
indication on the displays” inserted.
RTH
2009-04-20
2.0
Minor reworking at sections 3.4, 4.2, 7.
RTH
2009-07-31
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
Date
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 4 (28)
Table of Contents
1A. SAFETY INSTRUCTIONS ........................................................................................................................................5
1B. ELECTRIC WASTE DISPOSAL ................................................................................................................................5
2. GENERAL INFORMATION ..........................................................................................................................................6
2.1 TYPICAL APPLICATIONS ...........................................................................................................................................6
3. TYPE RANGE/EQUIPMENT ......................................................................................................................................7
3.1 MOUNTING ACCESSORIES.........................................................................................................................................7
3.2 FRONT VIEW/OPERATION ELEMENTS.......................................................................................................................8
3.3 ELECTRICAL CONNECTORS .......................................................................................................................................9
3.3.1 Electrical Connector X1 for UNV-F 2.5 – 3.3kVA, UNV60-5.0F and UNV110-5.0F ...................9
3.3.2 Electrical Connector X1 for UNV48-5.0F (HAN K 6/6).................................................................. 10
3.3.3 CAN-Bus connectors CAN1 & CAN2.................................................................................................. 11
3.4 COOLING/AIR FLOW DIRECTION ............................................................................................................................ 11
3.5 COMMUNICATION INTERFACE ................................................................................................................................ 12
4. HANDLING................................................................................................................................................................ 12
4.1 STORAGE.............................................................................................................................................................. 12
4.2 COMMISSIONING ................................................................................................................................................... 12
4.2.1 Single inverter ........................................................................................................................................ 13
4.2.2 Operation in parallel .............................................................................................................................. 13
4.2.3 CAN-Bus Addressing ............................................................................................................................. 13
4.3 LED INDICATIONS ................................................................................................................................................. 14
4.4 INTERNAL MONITORING ......................................................................................................................................... 15
4.5 ADJUSTMENT OF THE STANDARD AND THRESHOLD VALUES................................................................................... 16
4.5.1 Diagram “Standard display during operation/display of input and output parameters”..... 17
4.5.2 Diagram “Adjustment mode”............................................................................................................... 19
4.5.3 Table “Adjustable Parameters” .......................................................................................................... 21
5. MAINTENANCE........................................................................................................................................................ 22
6. TROUBLE SHOOTING ............................................................................................................................................. 22
6.1 FAILURE TABLE ..................................................................................................................................................... 22
6.2 ERROR INDICATION ON THE DISPLAYS .................................................................................................................... 23
7. TECHNICAL SPECIFICATIONS ............................................................................................................................... 25
7.1 DIMENSIONAL DRAWINGS ...................................................................................................................................... 27
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 5 (28)
1A. Safety Instructions
Warning!
Because several components of operating electrical modules are charged by dangerous voltage, the
improper handling of electrical modules may be the cause of accidents involving electrocution,
injury, or material damages.

Operation and maintenance of electrical modules must be performed by qualified skilled
personnel such as electricians in accordance with EN 50110-1 or IEC 60950.

Install the module only in areas with limited access to unskilled personnel.

Before starting work, the electrical module must be disconnected from mains. Make sure
that the module is earthed.

Do not touch connector pins as they can be charged with dangerous voltage up to 30
seconds after disconnection.

Only spare parts approved by the manufacturer must be used.
1B. Electric Waste Disposal
Separate collection is the precondition to ensure specific treatment and recycling of waste electrical and
electronic equipment and is necessary to achieve the chosen level of protection of human health and the
environment.
In the case of waste disposal of your discarded equipment we recommend to contact a waste management
company.
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 6 (28)
2. General Information
Inverters of the series UNV-F convert input side DC voltage to a stable sinusoidal output voltage.
The inverters are available for delivery with an output power of 2.5, 3.3 and 5.0 kVA per module.
Several units can be switched in parallel operation to increase the system output power.
The UNV-F is a hot-pluggable module with rear side connectors. Only the communication wire (CAN-Bus) is
connected at the front. The inverters are controlled and monitored by an internal microprocessor. Due to the
outstanding switching principle the units have very low losses and therefore very compact dimensions, low
weight and a very high power density.
All main functional parameters are adjustable with front side operating keys and are indicated with digital
displays.
To increase the reliability the UNV-F inverter is designed to operate together with a static transfer switch of
series UNB. The static transfer switch monitors the connected bypass mains and synchronizes the inverter
output with mains frequency. In inverter priority mode the UNB transfers the load supply to bypass mains in
case of inverter faults, high overload or battery low voltage. The transfer is nearly without voltage interruption
(<4ms). The unit switches back to inverter operation automatically if the reason for the transfer is gone. In case
of mains priority mode the inverter will take over the load if the mains voltage is not present, out of limits or
heavy disturbed. The priority source is programmable at the UNB unit (see separate manual).
2.1 Typical Applications
(a) Inverter in parallel operation without UNB
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
b) Inverter in parallel operation with UNB
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 7 (28)
3. Type Range/Equipment
Type
designation
Material code
Nominal
Inputvoltage
(VDC)
Nominal
Input
current
(ADC)
Nominal
Outputvoltage
(VAC)
Output
frequency
(Hz)
Outputpower
(VA
@ cosφ =0.8)
Dimensions
W/H/D (mm)
UNV48-2.5F
500-025-511.00
48
47.3
230
50/60
2500
483/133/360
UNV60-2.5F
500-025-611.00
60
37.9
230
50/60
2500
483/133/360
UNV110-2.5F
500-025-711.00
108
20.4
230
50/60
2500
483/133/360
UNV48-3.3F
500-033-511.00
48
62.5
230
50/60
3300
483/133/360
UNV60-3.3F
500-033-611.00
60
50.0
230
50/60
3300
483/133/360
UNV110-3.3F
500-033-711.00
108
26.7
230
50/60
3300
483/133/360
UNV48-5.0F
500-050-511.00
48
94.7
230
50/60
5000
483/133/440
UNV60-5.0F
500-050-611.00
60
74.9
230
50/60
5000
483/133/440
UNV110-5.0F
500-050-711.00
108
39.9
230
50/60
5000
483/133/440
For more specific data, see section 7.
3.1 Mounting accessories

Mounting set for 19’’ cabinet (not for UNV48-5.0F): Mat. code 880-MEC-MKT.01

Mounting set for 19’’ cabinet (for UNV48-5.0F): Mat. code 880-MEC-MKT.02
The mounting set is necessary to fit the UNV module in a 19’’ compatible cabinet (see section 4.2
“commissioning”).
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 8 (28)
3.2 Front View/Operation Elements
Digital displays
LED indicators
Two CAN-Bus connectors
Ventilation grid
UP/DOWN keys
ON/OFF switch
(Input/output fuse)
All operating elements are arranged at the front side of the module. The UNV-F, 2.5 and 3.3kVA are fitted with a
combined input and output MCB which is used as ON/OFF switch, whereas the 5.0kVA version is fitted with a
mechanical switch.
As shown with the front view the unit is equipped with seven LED indications:







Switch symbol (Operation)
Vo
(Output voltage ok)
Vi>
(Input overvoltage)
Vi<
(Input undervoltage)
Io>
(Overload)
T>
(Overtemperature)
Bell symbol (General alarm)
Two digital displays indicate the output voltage and output current values.
Detailed information concerning signalling and monitoring are described in the following sections.
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 9 (28)
3.3 Electrical Connectors
3.3.1 Electrical Connector X1 for UNV-F 2.5 – 3.3kVA, UNV60-5.0F and UNV110-5.0F
X1 (HAN-K4/8) socket outlet (DC input voltage / AC output voltage and signalling):
X1/Pin
Designation
1
DC input, plus pole
2
AC output, neutral conductor
3
DC input, minus pole
4
AC output, phase L1
5
---
6
SYNC-GND (synchronous bus ground)
7
SYNC-SIG* (synchronous bus 50Hz-signal)
8
SYNC-STAT** (synchronous bus state lines)
9
---
10
Collective failure COM***
11
Collective failure OK (normally open=NO)
12
Collective failure error (normally closed=NC)
The maximum allowed load for the relay contacts is:

@ V= 110V / I< 0.45ADC

@ V 60VDC / I< 1ADC
*In parallel operation the contacts SYNC – GND and SYNC – SIG of each inverter have to be wired.
**In operation with an UNB it is necessary to interconnect the synchronization bus (contacts SYNC – GND, SYNC
– SIG and SYNC – STAT) between the inverter(s) and the UNB.
***Potential free relay contact with safe electrical separation to the AC and DC side; in case of failure COM and
NC are closed.
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 10 (28)
3.3.2 Electrical Connector X1 for UNV48-5.0F (HAN K 6/6)
X1/Pin
Designation
1
DC input, Plus
2
---
3
---
4
AC output, phase L1
5
DC input, Minus
PE
PE
6
AC output, neutral conductor
11
Collective failure COM*
12
SYNC-GND (synchronous bus ground)
13
Collective failure OK (normally open=NO)
14
Collective failure error (normally closed=NC)
15
SYNC-SIG** (synchronous bus 50Hz-signal)
16
SYNC-STAT*** (synchronous bus state lines)
*Potential free relay contact with safe electrical separation to the AC and DC side; in case of failure COM and NC
are closed.
**In parallel operation the contacts SYNC – GND and SYNC – SIG of each inverter have to be wired.
*** In operation with an UNB it is necessary to interconnect the synchronization bus (contacts SYNC – GND,
SYNC – SIG and SYNC – STAT) between the inverter(s) and the UNB.
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 11 (28)
3.3.3 CAN-Bus connectors CAN1 & CAN2
The UNV-F is fitted with two CAN-Bus connectors at the front side (socket outlet RJ11, 6-pole):
CA N
1
6
CAN-Bus connector (socket)
Pin
Signals CAN1
Signals CAN2
Designation
1
CAN_V+

DC-Supply +8...15V
2
CAN_V+

DC-Supply +8...15V
3
CAN_H

Signal (high)
4
CAN_L

Signal (low)
5
CAN_V-

DC-Supply Ground
6
CAN_V-

DC-Supply Ground
3.4 Cooling/Air Flow Direction
The unit is cooled with an internal fan. The airflow is from the front to rear side. The fan is monitored and speed
controlled dependent on module temperature. To provide sufficient air flow, a minimum space (see item A in the
following figure) of 50 mm is required between the unit and the rear cabinet wall as well as an unobstructed
supply of air to the front of the module.
Please note:

The ambient temperature should not exceed a maximum of 45°C.

If the UNV-F module is integrated into a cabinet, the ambient temperature should not exceed a
maximum of 40°C.
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 12 (28)
3.5 Communication Interface
The inverter UNV-F is equipped with a serial data interface according to CAN (= Controller Area Network) –
specification. Via CAN-Bus, several devices in a system or parallel connection can be controlled and monitored
by a central unit which is integrated into the static transfer switch unit UNB.
Following parameters of a specific inverter unit can be controlled or monitored:




Remote ON/OFF
Inverter status (OK/failure)
Input voltage (measurement value)
Input current (measurement value)
The CAN-Bus connectors are located at the front panel. The wiring to the central unit should be as short as
possible. The cable length must not exceed 30m.
4. Handling
4.1 Storage
The devices must be stored in a dry, dust free environment with a storage temperature according to specific
data (please see section 7).
4.2 Commissioning
Note: Before commissioning the module, make sure that the input voltage corresponds to the input voltage
range of the unit as specified on the type plate.
If the inverter is to be mounted in a 19’’ compatible cabinet, a mounting set is necessary (see picture below).
After unpacking the unit put it upon the rails and slide in the unit carefully over the rails until the module
connector gets in touch with the backplane connector. Increase the pressure a little bit until the unit fits in
completely. Please avoid too much pressure. If the unit does not fit in please start again with the complete
slide-in process.
Mount the unit with 4 screws (M4x12).
Mounting set for UNV-F
(shown with an UNV-F unit).
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 13 (28)
For the electrical connection of DC input and AC output the backside panel connector is to be used. The DC
input is protected against wrong polarity (unit does not switch on). The UNV-F with output power of 2.5 and
3.3kVA are fitted with an output side MCB fusing at the front panel combined with an input side MCB, whereas
the 5kVA version is fitted with a mechanical switch. That means that the 5kVA version must be fused with
external fuses.
If the UNV-F works in combination with a static bypass switch (UNB) the CAN-Bus cable must be connected to
one of the CAN-Bus connectors at the front of the unit.
Please check the load power before the module is connected.
A permanent overload is not allowed and decreases the inverters lifetime. Especially the inrush currents of
loads have to be observed (e.g. the inrush current of an usual computer monitor can be more than
50A).
The connection of a non-fused protective earth conductor is required. The electrical connections have to be
done according to the pin list in section 3.3. Please use wires acc. to VDE 0100 or equal standard. To decrease
voltage losses on cables the usage of bigger sizes of wire as specified is recommended. For instance, a high
voltage loss on battery wires can decrease the backup time.
The following commissioning rules should be observed:
4.2.1 Single inverter







check the system wiring (polarity of DC- supply line)
check that the inverter is switched off
connect DC input with open DC busbar fuses
connect AC loads
close the DC busbar fuses
switch on the unit by front side MCB actuation
switch on the load
4.2.2 Operation in parallel









Before commissioning paralleled units make sure that the output voltage and frequency matches.
check the system wiring (polarity of DC- supply line, synchronous bus)
check that the inverters are switched off
connect DC input with open DC busbar fuses
check the wiring between inverters (synchronization wires)
connect AC loads
close DC busbar fuses
switch on the units by front side MCB actuation
switch on the load
Note: The unit which transmits the synchonization signal to the synchronization bus at first will be the master.
If this master unit is disturbed or switched off, another unit overtakes the master function. In systems with a
static transfer switch (UNB) the inverters are synchronized by the UNB unit.
The inverter output relay switches the inverter output to the AC busbar if the internal voltage is okay and the
output voltage is within the correct range. In this way defective modules switch off themselves and are
disconnected from the AC bus automatically.
4.2.3 CAN-Bus Addressing
If paralleled inverters work in combination with a static transfer switch (UNB), the respective inverters within
the system must be addressed for a clear identification via the CAN-Bus. The specific address per inverter
(module) must be allocated with the adjustment keys in the “basic menu PM1” (please see the section 4.5. and
the following).
The standard address (factory set) of the inverter is “001”.
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 14 (28)
4.3 LED Indications
The following functions are indicated with front side LEDs:
LED
Colour
Meaning
green
Inverter is switched on and operates
green
Inverter output voltage okay*
red
Input voltage high*
red
Input voltage low*
red
Output current to high; short circuit or overload at the output
red
1.) Lights continuously: Overheating of the inverter by overload.
2.) Blinking: Malfunction of the cooling fan
red
Collective failure; the delay time of the relay alarm is adjustable**; relay
contact at X1; all single failures are included.
* Adjustment of the threshold values, please see section 4.5
**Only with the service menu PM2.
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 15 (28)
4.4 Internal Monitoring
Monitored values
Criteria
Function
Vi<: The device automatically switches off
with an adjustable delay time**. It switches on
if the input voltage is in the correct range. The
switch-on voltage is adjustable*.
DC input voltage
Input voltage out of the range of
adjustable thresholds Vi<* and Vi>*
Output voltage higher than adjusted
operating threshold*
AC output voltage
Output voltage lower than adjusted
operating threshold*
Vi>: The device automatically switches off
without delay time (protection against
overvoltage). It switches on if the input
voltage is lower than the adjusted switch off
threshold*.
The device automatically switches off; manual
restart is necessary.
LED “Vo” = OFF; LED “collective failure”= ON
>130% Inom
LED “Io>” = ON; After 3 seconds the device
automatically switches off; automatic restart
AC output current
after 15 seconds (for 3 times).
>100% Inom
After 30 seconds follows an automatic
shutoff; manual restart is necessary.
The device automatically switches off with
delay time. It automatically switches on if the
temperature is lower than adjusted switch on
Overheating;
Internal temperature higher than
threshold. LED T> is on.
Cooling fan
adjusted threshold (factory setting)
Additionally the fan voltage and current
function
characteristic is monitored to detect a
defective fan. This is indicated by a blinking
LED T>.
* Adjustment of the threshold values please see section 4.5 //**Only with the service menu PM2.
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 16 (28)
4.5 Adjustment of the standard and threshold values
The adjustment takes place with up/down keys located at the front panel of the inverter while the displays
indicate the actual values.
Front keys
Designation
Operation

up


down

during menu item selection: change to
previous item (parameter)
during adjustment mode: increase value
during menu item selection: change to next
item (parameter)
during adjustment mode: decrease value
The inverter offers two adjustment menus:

The basic menu PM1 is available for all users.

The service menu PM2 is available for service personnel only. PM2 is code protected to guard against illegal
parameter changes.
In the operation mode the top display indicates the output voltage and the bottom display indicates the output
current. With pressing the key UP () or DOWN () you are able to switch back and forth between the input and
output parameters according to the diagram “Standard display during operation/display of input and output
parameters” (see section 4.5.1)
For the adjustment of parameters in the basic menu PM1 the following procedure has to be carried out (see
also section 4.5.2, diagram “Adjustment mode”):
1. press both keys UP/DOWN () together for short time; the inverter changes to the adjustment mode
2. press the key UP () or DOWN () to change the parameter (see also diagram “Adjustment mode”)
3. press both keys UP/DOWN () together for short time; the inverter changes to the value change mode
4. press the key UP () or DOWN () to change the adjustment value
5. press both keys UP/DOWN () together for short time; the inverter changes back to adjustment
mode (the upper display shows a horizontal line / the changed value is saved at this moment)
6. press both keys UP/DOWN () for approximately three seconds to change back to the operation mode
(For the table of the adjustable parameters in the basic menu PM1, please see section 4.5.3)
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 17 (28)
4.5.1 Diagram “Standard display during operation/display of input and output parameters”
The continuation of the diagram is on the next page!
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 18 (28)
Continuation of the previous page:
By pressing both keys short-time at the position “” (Hardware reset) the device switches off and restarts.
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 19 (28)
4.5.2 Diagram “Adjustment mode”
For switching to the adjustment mode shortly press both keys together at any position within the
display of input and output parameters (except for the position “hardware reset”).
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 20 (28)
You can leave the adjustment mode by pressing both keys for approximately three seconds.
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 21 (28)
4.5.3 Table “Adjustable Parameters”
Following table shows the standard values (factory set), adjustment ranges and steps:
Display1
Designation
Factory setting
Range
Step
230 [VAC]
200...255
0,25 [V] *
207 [VAC]
180...230
1,0 [V]
253 [VAC]
230...270
1,0 [V]

nominal value of output
voltage Uo
monitoring threshold of
output voltage low Uo<
Monitoring threshold of
output voltage high
Uo>
switch off threshold
input voltage high Ui>
switch off threshold
input voltage low Ui<

switch on again
threshold input voltage
low Ui<
48/60V: 75 [VDC]
108V: 130
48V: 41 [VDC]
60V: 51 [VDC]
108V: 92 [VDC]
48V: 45 [VDC]
60V: 56 [VDC]
108V: 96 [VDC]
0...80
0...135
41...80
41...80
90...110
41...80
41...80
90...110
0,1 [V]
0,25 [V]*
0,1 [V]
0,1 [V]
0,25 [V]*
0,1 [V]
0,1 [V]
0,25 [V]*
CAN Address
001


 
 

1
*When adjusting the threshold values with up/down keys, the moving dot shows the actual value according to
the example (this applies only to the 0.25 steps):
Example:




corresponds to 230.0
corresponds to 230.25
corresponds to 230.5
corresponds to 230.75
With each click at the UP/Down keys the dot moves. After four times clicking (4/4), the voltage value is
increased (or decreased) for 1V.
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 22 (28)
5. Maintenance
In general, the inverter is maintenance-free.
A yearly inspection with following checks is recommended:




Correct fan operation
Mechanical inspection
Removal of dust and dirt, especially on radiator surfaces
Check for internal dust or humidity
Attention! Dust combined with dew or water may influence the internal electronic circuits. Dust inside the unit
can be blown out with dry compressed air.
The intervals between this checks depend on ambient conditions of the installed module.
6. Trouble Shooting
6.1 Failure Table
Symptom
No output voltage
Deviation of output
voltage
Possible reason

DC input voltage ok?

main switch (MCB) on?

green LED „Operation“ on?

incorrect polarity at the input?

DC input fuse (at DC busbar) ok?

signalling LED Vi> or Vi< on ?



short circuit or overload at the output?
output fuse ok?
Unit switched off due to overheating
(LED T> on)?



overload at the output?
big inrush current of load?
distortions by load steps or current
peaks?
adjustment of voltage value Vo not
correct?

Corrective action
→ check
→ check
→ check
→ check
→ check
→ check the adjustment values of Vi
(see item 4.5.2)
→ check/reduce load
→ check
→ search after the cause of the
overheating
→ check/reduce load
→ check
→ check
→ check /adjust Vo to the correct
value (see item 4.5.2)
If the unit still does not work even though all checks are done, please contact your sales agent or the service
department of Eltek Valere Deutschland.
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 23 (28)
6.2 Error indication on the displays
Switch-off (shutdown of the module) caused by error is indicated on the displays.
Example:

Upper display:
SHd = Shutdown

Lower display:
Error number (example „129“)
Possible single error numbers are listed in the table below:
Error number (decimal number)
1
2
4
8
16
32
64
128
Meaning
Io> or Vi>
Vi< or fan error
Vo not ok (e.g. restart error)
T> or input DC/DC converter not ok
Internal error
Switch off via CAN-Bus (e.g. by static bypass switch UNB)
Vo>
Vo<
If more than one error appeared, the result (addition of the single error numbers) is shown at the lower display.
The example above (error number „129“) is the result of error number „1“ plus error number „128“.
For error numbers which include two possibilities (error number „1“, „2“ and „8“) please note the LED which
additionally is “ON” for an identification of the error.
A further example to clarify:

Upper display:
SHd = Shutdown

Lower display:
Error number (example „138“)
Error number „138“ is the result of „128“ + „8“ + „2“.
„2“ means “input under voltage” (LED „Vi<“ is ON) or “fan error” (LED „T>“ is blinking).
„8“ means “over temperature” (LED „T>“ is ON) or “input DC/DC converter is not ok”.
„128“ means „output under voltage”. Because the module has switched OFF there is no output voltage. Due to
this, the error „output under voltage“ also is included.
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 24 (28)
The following display indications are exceptions:
At shutdown due to short circuit or overload the displays indicate the following:

Upper display:
SHd = Shutdown

Lower display:
ovL = short circuit/overload
An intended shutdown via CAN-Bus by static bypass switch UNB is indicated as follows:

Upper display:
OFF (shutdown)

Lower display:
CAn (via CAN-Bus)
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 25 (28)
7. Technical Specifications
Type range
UNV-2.5F
UNV-3.3F
Article code
See section 3, table “Type range”
UNV-5.0F
DC Input
Nominal input voltage
See section 3, table “Type range”
Input voltage tolerance
range
Nominal input current
+20/-15%
See section 3, table “Type range”
Inrush current
≤ nominal current


Overall efficiency
≥87%


Internal input fusing
MCB 1-pole

No, external


AC Output
Nominal output voltage
230VAC ± 0,5% (±5% at parallel operation), sinusoidal
Nominal output current
10.9AAC
Nominal output power
See section 3, table “Type range”
Overload capability
130% for 10 seconds


Output frequency
50 or 60Hz
programmable


Synchronisation range
45- 65Hz


Accuracy
±0.5% static


Recovery time
<0.3 ms for load transients 10%- 90%- 10%
Short circuit protection
continuously short circuit proof, 3x Inom for approx. 3 sec.
Parallel operation
max. 16 pieces, load sharing approx. 5% Inom
THD
≤ 2% for linear load


Crest factor
≤3


Power factor range
0.5 ind. - 1- 0.5 cap.


14.35AAC
21.7AAC
Standard Features
LED signalling
Standby, Vo, Vi>, Vi<, overload, over temperature, general fault
Electronic protection
Mechanically coupled input and output MCB (not UNV-5.0F), input under voltage
shut down, input over voltage shut down, over temperature shut down,
overload/short circuit shut down.
Parallel operation and three-phase systems without additional components or
specified master
Relay contact “General Fault”
External synchronization
Remote signals
Digital display
Microprocessor control
2 x 3 digits; output voltage, output current, frequency, input voltage, input
current, temperature, effective power, apparent output, cos φ
Programmable monitoring and protection for all system parameters
Communication
CAN-Bus interface for communication with static transfer switch UNB
Environmental
Ambient temperature
Operation: 0°C up to +45°C(max. 40°C fitted in cabinets), storage: -40°C up to
+85°C
Climatic conditions
according to IEC 721-3-3 class 3K3/3Z1/3B1/3C2/3S2/3M2
Max. installation altitude
≤ 1500m
©2009. ELTEK VALERE DEUTSCHLAND GmbH.


UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 26 (28)
Audible noise
< 45dB (A)


Mechanical
Construction
19’’- compatible rack, full width, rear side connectors
Electrical connectors
Input/output and signals : HAN K 4/8 at the rear side;
CAN 1 + 2 at the front side
Cooling
Speed-controlled fan with over temperature monitoring
Type of enclosure
IP20 (front panel)
Dimensions (W/H/D)
[mm]
Minimum installation
depth [mm]
Weight
483/133/360
483/133/360
483/133/440
440 ex. 19’’ frame
440 ex. 19’’ frame
550 ex. 19’’ frame
approx. 22 kg
approx. 27 kg
approx. 38 kg
Surfaces
Front panel: powder coating RAL 7035; neutral, black print RAL 9005;
constructive parts: anodized metal
Input/output and signals
: HAN K 4/8 (HAN K 6/6:
UNV48-5.0F) at the rear
side;
CAN 1 + 2 at the front
side
Compliances


CE conformity
yes
Compliance to safety
standards
Compliance to EMC
standards
EN60950-1; VDE0100 T410; VDE0110; EN50178; EN60146
EN55011/22 class “B“; EN61000-4 T2-5
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
DC/AC Inverter
UNV-F
User Manual
Page 27 (28)
7.1 Dimensional drawings
UNV-2.5F/UNV-3.3F:
UNV-5.0F:
©2009. ELTEK VALERE DEUTSCHLAND GmbH.
UM_UNVF_ E_R2.0
Supplier:


FAX
Email
Internet
ELTEK VALERE DEUTSCHLAND GmbH
GB Industrial
Schillerstraße 16
D-32052 Herford
+ 49 (0) 5221 1708-210
+ 49 (0) 5221 1708-222
[email protected]
http://www.eltekvalere.com
2009. ELTEK VALERE DEUTSCHLAND GmbH. All rights reserved.